Abstract :Critical public assets such as oil and gas pipelines, public buildings, power plants, nuclear plants, public water utility etc needs to be monitored in real time so as to ensure their availability, dependability, safety and security. In this paper, we examined the basic components and architecture of real-time system, which includes real-time control, data acquisition system (DAS), critical systems, sensors and actuators, stimulus and response, Multi Agent System (MAS); design procedures and implementation of real-time systems using JAVA Standard Edition (SE) programming paradigm known as Java classes. We also examined the pros and cons of JAVA as a programming language compared to other languages such as Assembly Language and Ada. The paper went further to present the design and process architectures and timing requirements for two critical public assets- the oil and gas pipeline and public building involving different types of sensors and actuator interfaces. The paper concluded by implementing JAVA classes for the burglary alarm intruder detection system capable of detecting and reporting any intrusion targeted at critical public buildings.

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International Journal of Trend in Scientific Research and Development - IJTSRD having
online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International
Journal which provides rapid publication of your research articles and aims to promote
the theory and practice along with knowledge sharing between researchers, developers,
engineers, students, and practitioners working in and around the world in many areas.